Celeste just adds an additional “Bluetooth” sharing button as shown in the image above . You can also send files from your computer . Celeste requires no additional settings and works right away with other apps like DropBox , Photos, iBooks , Voice Memos , iFile etc.

Download and Installation :

First jailbreak iPhone 4 using Redsnow or Snowbreeze (both free to download and use applications)

After jailbreak you can download Celeste BlueTooth File Sharing App from Cydia .